plot.h

Go to the documentation of this file.

 
#ifndef PLOT_H
#define PLOT_H
 
#include <config.h>
 
#include "graph.h"
 
#include <vector>
 
typedef struct _plot_item_t {
    double      frame_ts;   /* Absolute timestamp of the packet */
    double      rel_cap_ts; /* Time relative from capture start */
    uint32_t    frame_num;  /* Packet number */
    unsigned    idx;        /* Istance of the field in the packet */
    double      value;      /* Value of the field (always converted to double) */
} plot_item_t;
 
class QCPRange;
 
class Plot : public Graph {
    Q_OBJECT
 
public:
    explicit Plot(QCustomPlot *parent, QCPAxis *keyAxis = nullptr, QCPAxis *valueAxis = nullptr);
 
    ~Plot();
 
    void setFilterField(const QString &filter, const QString &field);
 
    void setPlotStyle(PlotStyles style);
 
    void setVisible(bool visible);
 
    QString configError() const { return config_err_; }
 
    double startTime() const;
 
    void setPlotStartTime(double start_time);
 
    bool absoluteTime() const { return abs_time_; }
 
    void setAbsoluteTime(bool abs_time);
 
    void setYAxisFactor(double y_axis_factor);
 
    int hfIndex() const { return hf_index_; }
 
    const std::vector<plot_item_t> &getItems() const { return items_; }
 
    void removeTapListener();
 
    static bool itemCompare(const plot_item_t &a, const plot_item_t &b);
 
    static bool itemRelCapCompare(const plot_item_t &a, const plot_item_t &b);
 
    static void setAxisColor(QCPAxis *axis, const QPen &pen);
 
    uint32_t packetFromTime(double ts) const;
 
    void makeCsv(QTextStream &stream) const;
 
    QCPRange recentDrawnDataRange(int count) const;
 
public slots:
    void captureEvent(const CaptureEvent &e);
 
 
signals:
    void requestReplot();
 
    void requestRecalc();
 
    void requestRetap();
 
private:
    // Static trampoline callbacks passed to register_tap_listener.
    static void tap_reset(void *plot_ptr);
    static tap_packet_status tap_packet(void *plot_ptr, packet_info *pinfo, epan_dissect_t *edt, const void *data, tap_flags_t flags);
    static void tap_draw(void *plot_ptr);
 
    void tapReset();
    tap_packet_status tapPacket(packet_info *pinfo, epan_dissect_t *edt, const void *data _U_, tap_flags_t flags _U_);
    void tapDraw();
 
    nstime_t first_packet_;   
    double plot_start_time_;  
    bool abs_time_;           
    bool tap_registered_;     
    bool retap_needed_;       
    int hf_index_;            
    QString full_filter_;     
    QString config_err_;      
    std::vector<plot_item_t> items_; 
};
 
#endif // PLOT_H